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Aluminum Nitride vs. Granite

Aluminum nitride belongs to the non-oxide engineering ceramics classification, while granite belongs to the natural stone. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is aluminum nitride and the bottom bar is granite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 2100
2200
Elastic (Young's, Tensile) Modulus, GPa 330
70
Flexural Strength, MPa 190 to 400
24
Poisson's Ratio 0.21 to 0.31
0.25

Thermal Properties

Maximum Temperature: Mechanical, °C 1380
350
Specific Heat Capacity, J/kg-K 780
840
Thermal Conductivity, W/m-K 80 to 190
2.7
Thermal Expansion, µm/m-K 4.2 to 5.4
7.4

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 15 to 56
8.5

Otherwise Unclassified Properties

Density, g/cm3 2.9 to 3.3
2.9

Common Calculations

Stiffness to Weight: Axial, points 55 to 63
14
Stiffness to Weight: Bending, points 69 to 80
48
Thermal Diffusivity, mm2/s 31 to 74
1.1